Home / 442,859,191.40-664,288,787.10-258,437,354.60

Finding the Fourth Proportional to 442,859,191.40, 664,288,787.10 and 258,437,354.60

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Solution

The fourth proportional to 442,859,191.40, 664,288,787.10 and 258,437,354.60 is: 387,656,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,859,191.40 : 664,288,787.10 = 258,437,354.60 : x
  2. Step 2: Convert to fraction form
    442,859,191.40/664,288,787.10 = 258,437,354.60/x
  3. Step 3: Cross multiply
    442,859,191.40x = 664,288,787.10 × 258,437,354.60
  4. Step 4: Simplify right side
    442,859,191.40x = 171,677,036,828,566,592
  5. Step 5: Solve for x
    x = 171,677,036,828,566,592/442,859,191.40
  6. Step 6: Final answer
    x = 387,656,031.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.